Experimental and numerical investigation of hybrid laser arc welding process and the influence of welding sequence on the manufacture of stiffened flat panels

Hammad, Ahmed; Churiaque, Cristina; Sánchez-Amaya, J.M.; Abdel-Nasser, Yehia

doi:10.1016/j.jmapro.2020.11.040

Cited by 47 publications

(16 citation statements)

References 28 publications

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“…Welding is an amazingly significant industrial process that is used in automotive industries, high rise office buildings, aeroplanes, rockets and pipelines. More specifically, arc welding is the most common type of welding, whereby the source of heat is supplied by a high-current electric arc, between the base metal and the electrode material [10,11]. The generated heat is enough to melt the electrode tip and the base metal.…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Weld Heat-Treatment on Corrosion and Microstructure Properties of Electric Arc Welded Mild Steels

Ajide¹,

Anifalaje²,

Akande³

et al. 2023

Port. Electrochim. Acta

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Welding has been an incredibly important process used to join metals in several industrial applications, such as manufacturing, construction, automotive and aerospace sectors. It has been reported that welded joints sometimes exhibit poor corrosion resistance, due to the changes in the weld surface or HAZ chemical composition, residual stress and metallurgical structure. Therefore, there is a need to enhance welds corrosion resistance and microstructure properties through PWHT. In this study, PWHTs effect on the corrosion and microstructure properties of two MSs, SAE 1015 and 1010, which were fused by electric metal arc welding, was examined. The MS samples, with different chemical compositions, were cut to the desired dimensions, separately welded and, thereafter, subjected to PWHT, at 650, 750, 850 and 950 ºC, for 1 h. The corrosion and microstructure properties of the PWHT MS samples immersed in 3.5 wt.% NaCl were then investigated, using PDP and SEM, respectively. For the PWHT SAE 1015 and 1010 MS samples, the lowest CR values were 34.240 and 35.793 mm/year, at 650 ºC, while the highest were 90.16 and 60.10 mm/year, at 950 ºC, respectively. For the AW SAE 1015 and 1010 MS samples, the CR values were 107.54 and 118.09 mm/year, respectively. The SEM images revealed smaller grain sizes and boundaries and less porosity for PWHT MS samples at 650 ºC than for those at 950 ºC. Therefore, the first ones are recommended for advanced industrial applications.

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Section: Introductionmentioning

confidence: 99%

Effect of Post-Weld Heat-Treatment on Corrosion and Microstructure Properties of Electric Arc Welded Mild Steels

Ajide¹,

Anifalaje²,

Akande³

et al. 2023

Port. Electrochim. Acta

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“…However, laser welding exists the weaknesses of poor bridging ability and strict requirement of the joint gap [10]. As an applicative and emerging deep penetration connection technology, laser-arc hybrid welding technology, which developed in the 1990s, has been widely applied in civil passenger aircraft, automobiles, construction machinery, rail transportation and equipment manufacturing fields [11,12]. In the laser-arc hybrid welding process, the dual heat sources synergy and interact effect between laser and arc produces narrow and deep welds, thereby greatly improving production efficiency [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of droplet transition on the dynamic behavior of the keyhole during 6061 aluminum alloy laser-MIG hybrid welding

Zhao

Xudong

et al. 2021

Int J Adv Manuf Technol

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“…Low welding speeds with arc methods additionally increase production costs. The use of modern welding equipment in the production process like a laser beam has significantly increased the production capacity of T-joints [ 8 , 9 , 10 , 11 , 12 ]. Laser methods allow T-joints to be made using various welding techniques, such as classic joints with the use of double-side and single-side fillet welds, with or without additional material as well as T-joints with the use of butt-welds.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Welding Heat Source Inclination on the Melted Zone Shape, Deformations and Stress State of Laser Welded T-Joints

et al. 2021

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The paper concerns the numerical analysis of the influence for three different of welding heat source inclinations on the weld pool shape and mechanical properties of the resulting joint. Numerical analysis is based on the experimental tests of single-side welding of two sheets made of X5CrNi18-10 stainless steel. The joint is made using a laser welding heat source. Experimental test was performed for one heating source inclination. As a part of the work metallographic tests are performed on which the quality of obtained joints are determined. Numerical calculations are executed in Abaqus FEA. The same geometrical model is assumed as in the experiment. Material model takes into account changing with temperature thermophysical properties of austenitic steel. Modeling of the motion of heating source is performed in additional subroutine. The welding source parameters are assumed in accordance with the welding process parameters. Numerical calculations were performed for three different inclinations of the source. One inclination is consistent with experimental studies. The performed numerical calculations allowed to determine the temperature field, shape of welding pool as well as deformations and stress state in welded joint. The obtained results are compared to results of the experiment.

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Experimental and numerical investigation of hybrid laser arc welding process and the influence of welding sequence on the manufacture of stiffened flat panels

Cited by 47 publications

References 28 publications

Effect of Post-Weld Heat-Treatment on Corrosion and Microstructure Properties of Electric Arc Welded Mild Steels

Effect of Post-Weld Heat-Treatment on Corrosion and Microstructure Properties of Electric Arc Welded Mild Steels

Effect of droplet transition on the dynamic behavior of the keyhole during 6061 aluminum alloy laser-MIG hybrid welding

The Influence of Welding Heat Source Inclination on the Melted Zone Shape, Deformations and Stress State of Laser Welded T-Joints

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